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The purpose of this paper is to improve the safety of construction workers by understanding their behaviors on construction sites using spatio-temporal (ST) trajectories.

A review of construction safety management literature and international occupational health and safety statistics shows that the major reasons for fatalities on construction sites are mobility-related issues, such as unsafe human behaviors, difficult site conditions, and workers falling from heights and striking against or being struck by moving objects. Consequently, literature has been reviewed to find possible technological solutions to track the mobility of construction workers to reduce fatalities. This examination has suggested that location acquisition systems, such as Global Positioning System (GPS), have been widely used for real-time monitoring and tracking of workers on construction sites for hazard prevention. However, the raw data captured from GPS devices are generally available as discrete points and do not hold enough information to understand the workers’ mobility. As a solution, an application to transform raw GPS data into ST trajectories using different preprocessing algorithms is proposed for enhancing worker safety on construction sites.

The proposed system preprocesses raw GPS data for stay point detection, trajectory segmentation and intersection of multiple trajectories to find significant places and movements of workers on a construction site to enhance the information available to H&S managers for decision-making processes. In addition, it reduces the size of trajectory data for future analyses.

Application of location acquisition systems for construction safety management is very well addressed in the existing literature. However, a significant gap has been found: the usage of preprocessed ST trajectories is still missing in workers’ safety monitoring scenarios in the area of construction management. To address this research gap, the proposed system uses preprocessed ST trajectories to monitor workers’ movements on a construction site to identify potentially unsafe behaviors.

21e Congrès AIEST, 5–13 septembre 1971, Puerto de la Cruz (Ténériffe) Programme du Congrès Voici les données principales du 21e Congrès de l'AIEST. Des précisions seront fournies plus tard par le Secrétariat Général de l'AIEST, à Berne.

This study analyzes the relationship between multinationality and performance of 1,247 US multinational enterprises (MNEs) over the period of 1995‐2004 by utilizing Tobin’s q theory. Internationalization is a double‐edged sword: foreign intangible assets create a firm’s value, while, at the same time, internationalization itself degrades the value by raising transaction costs and uncertainty in foreign operations. The empirical results show that US MNEs cannot increase their performance merely by developing their intangible assets in the rest of the home region (Canada and Mexico). Conversely, US MNEs rarely suffer from a liability of foreignness in their home region.

Aim of the present monograph is the economic analysis of the role of MNEs regarding globalisation and digital economy and in parallel there is a reference and examination of some legal aspects concerning MNEs, cyberspace and e‐commerce as the means of expression of the digital economy. The whole effort of the author is focused on the examination of various aspects of MNEs and their impact upon globalisation and vice versa and how and if we are moving towards a global digital economy.

Although Hispanics represent a large and growing proportion of the US workforce, little is known regarding the possible effects of their somewhat unique cultural values, beliefs, and practices on their experiences of work-family conflict or job satisfaction. This research tested theoretically derived hypotheses regarding the protective effect of a component of familism values, family as a source of social support, on these outcomes.

A moderated mediation model was tested using survey data from Hispanic professionals (N = 103).

As predicted, family support was negatively related to work interfering with family (WIF) and positively related to job satisfaction. WIF mediated the relationship between family support and job satisfaction. Additionally, gender moderated this mediated relationship such that the effects were stronger for Hispanic women than men.

Generalizability of the results should be explored by employing larger samples that include longer tenured workers, employees with higher degrees of management experience, and additional Hispanic subgroups. Results contribute to a growing body of research demonstrating beneficial effects of familism values for Hispanics.

Results suggest that organizations may benefit from taking active steps to support familism values among Hispanic workers.

This is the first empirical study to explore the possible benefits of family support values on workplace outcomes.

This study aims to investigate additive manufacturing of nickel-based superalloy IN718 made by powder bed fusion processes: powder bed fusion laser beam (PBF-LB) and powder bed fusion electron beam (PBF-EB).

This work has focused on the influence of building methods and post-fabrication processes on the final part properties, including microstructure, surface quality, residual stresses and mechanical properties.

PBF-LB produced a much smoother surface. Blasting and shot peening (SP) reduced the roughness even more but did not affect the PBF-EB surface finish as much. As-printed PBF-EB parts have low residual stresses in all directions, whereas it was much higher for PBF-LB. However, heat treatment removed the stresses and SP created compressive stresses for samples from both PBF processes. The standard Arcam process parameter for PBF-EB for IN718 is not fully optimized, which leads to porosity and inferior mechanical properties. However, impact toughness after hot isostatic pressing was surprisingly high.

The two processes gave different results and also responses to post-treatments, which could be of advantage or disadvantage for different applications. Suggestions for improving the properties of parts produced by each method are presented.

The purpose of this paper is to consider people's ways of coping with increasing flooding in a Philippine rural community.

The paper relies on extensive field work conducted between July and August 2006. It cross‐checks data from different sources including interviews with key informants, a questionnaire‐based survey, informal group discussions, passive and stationary observations and photographic documentation. Field work was completed by the collection of secondary written documents.

The paper emphasizes that the capacity of flood‐affected people to cope with increasing hazards is rooted in their ability to adjust their everyday lifestyles. Flood‐affected people seldom rely on extraordinary measures to face nature's extremes. People's ability to adjust their daily life is deeply dependent on the strength of their livelihoods and social network. The kind and variety of livelihoods turned out to be a critical factor in securing the financial means to purchase enough food to satisfy daily needs. Social networking was also found to be critical in providing alternative support in times of crisis.

This paper fosters the use of community‐based disaster risk reduction programmes coupled with development objectives to enhance people's capacity to cope with natural hazards. It further underlines the need to empower people to make them less vulnerable in the face of natural hazards through fair access to resources.

This article contributes to the understanding of how people cope with natural hazards in the Philippines and provides an array of possible remedial strategies for community‐based disaster risk reduction.